systray: Set _NET_SYSTEM_TRAY_ICON_SIZE

src/server.h

@@ -71,6 +71,8 @@ typedef struct Global_atom
 	Atom MANAGER;
 	Atom _NET_SYSTEM_TRAY_MESSAGE_DATA;
 	Atom _NET_SYSTEM_TRAY_ORIENTATION;
+	Atom _NET_SYSTEM_TRAY_ICON_SIZE;
+	Atom _NET_SYSTEM_TRAY_PADDING;
 	Atom _XEMBED;
 	Atom _XEMBED_INFO;
 	Atom _NET_WM_PID;
@@ -154,4 +156,4 @@ void get_monitors();
 void get_desktops();
 int server_get_number_of_desktops();
 
-#endif
+#endif